UPDATE...Firstly, thanks guys for your input. I really do appreciate it, it helped me to find a starting point and get this project underway. After a ton of research, finding out what this rig needed, and no time to do any of the work myself, I decided to search locally and I found a great off-road shop, with great knowledge/guidance, and the right price.
I had to fix a few wiring issues that were preventing the alternator from functioning, throw a new battery in it, fix a couple cooling leaks, and replace the front brake line that runs from the ABS unit to the passenger side. Then, I was able to limp it down to the shop here and let them work their magic.
...I'll never drive a vehicle in that condition again, surprised the entire front-end didn't fall out.
No shackles, horrible welds on the...everything...literally everything. In addition to stripped bolts/nuts/studs, wrong parts, missing parts. I don't know what the last owner was trying to do, but it should be a sin. Anyways, after the guys at the shop analyzed the blasphemous work that had been horribly attempted, had some good laughs, and questioned how I even drove it there and made it, they gave it all a good look over and suggested a plan of attack.
The team at D & C Extreme here in Colorado Springs were happy to take on this project and get 'er done!!!
To sum it all up, the truck ended up getting a new solid axle swap mounting kit, they fixed all of the minor/major issues relating to proper fitment of the axle assembly and steering angles, custom-mounted all leaf spring supports, fabbed and installed shackles, verified proper gear ratios so I can get a passenger-side drop t-case and keep the axle it has (241C from the 87-89 GM trucks), they repaired the shock hoops and installed a set of Rancho 9000XL shocks.
....still under $2k for repairs!! Only spent $850 for the truck...now I see why lol. It's all good though, I was expecting much more.
Deciding to roll with it without 4wd for now. I just picked it up this evening and drove it for the first time without ******** bricks lol. The ride quality exceeded my expectations significantly, and the love for this rig has now began. It was going to be a winter beater for me, but now I'm really excited to push it further. When I am "done" with my primary project (The GT-R in my profile pic), I'll prioritize the truck and eventually turn it into a dream...a good dream, not the nightmare I started with.
It's dark out and I've got a busy week ahead of me, should have photos up next week of everything installed now. Just need that t-case in (Found for $250 locally with shifter, linkage, and driveshaft), and the drive-train will be all set for my current needs. Also, if anyone is local or near the Colorado Springs area and is trying to get rid of anything, let me know. I am looking for a complete exhaust, light-bar, cowl induction-styled hood, front bumper (OEM or non), and various interior parts (Dash bezel, carpet, small misc. trim pieces).